Canoe rental service charges a $20 transportation fee of $30 an hour to rent a canoe. a. Write an equation that represents this scenario.
b. What does the slope represent?
c. What does the y-intercept represent?
d. What is the cost of renting the canoe for 6 hours?

Sorry guys but as you have a small brain

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?